FR2764462A1 - Perfectionnement aux systemes de projection - Google Patents

Perfectionnement aux systemes de projection Download PDF

Info

Publication number
FR2764462A1
FR2764462A1 FR9707178A FR9707178A FR2764462A1 FR 2764462 A1 FR2764462 A1 FR 2764462A1 FR 9707178 A FR9707178 A FR 9707178A FR 9707178 A FR9707178 A FR 9707178A FR 2764462 A1 FR2764462 A1 FR 2764462A1
Authority
FR
France
Prior art keywords
projector
linear
polarization
quasi
transforming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR9707178A
Other languages
English (en)
French (fr)
Inventor
Khaled Sarayeddine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vantiva SA
Original Assignee
Thomson Multimedia SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Multimedia SA filed Critical Thomson Multimedia SA
Priority to FR9707178A priority Critical patent/FR2764462A1/fr
Priority to EP98401290A priority patent/EP0884898B1/de
Priority to DE69834070T priority patent/DE69834070D1/de
Priority to US09/089,306 priority patent/US6318862B1/en
Priority to JP10157675A priority patent/JPH1195173A/ja
Publication of FR2764462A1 publication Critical patent/FR2764462A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7408—Direct viewing projectors, e.g. an image displayed on a video CRT or LCD display being projected on a screen
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Polarising Elements (AREA)
FR9707178A 1997-06-10 1997-06-10 Perfectionnement aux systemes de projection Withdrawn FR2764462A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9707178A FR2764462A1 (fr) 1997-06-10 1997-06-10 Perfectionnement aux systemes de projection
EP98401290A EP0884898B1 (de) 1997-06-10 1998-05-29 Verbesserungen an Projectionssystemen
DE69834070T DE69834070D1 (de) 1997-06-10 1998-05-29 Verbesserungen an Projectionssystemen
US09/089,306 US6318862B1 (en) 1997-06-10 1998-06-02 Projection system employing multiple beam reflections
JP10157675A JPH1195173A (ja) 1997-06-10 1998-06-05 投影システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9707178A FR2764462A1 (fr) 1997-06-10 1997-06-10 Perfectionnement aux systemes de projection

Publications (1)

Publication Number Publication Date
FR2764462A1 true FR2764462A1 (fr) 1998-12-11

Family

ID=9507807

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9707178A Withdrawn FR2764462A1 (fr) 1997-06-10 1997-06-10 Perfectionnement aux systemes de projection

Country Status (5)

Country Link
US (1) US6318862B1 (de)
EP (1) EP0884898B1 (de)
JP (1) JPH1195173A (de)
DE (1) DE69834070D1 (de)
FR (1) FR2764462A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6561649B1 (en) * 1999-07-09 2003-05-13 Sarnoff Corporation Compact rear projection system using birefringent optics
US6873460B1 (en) 1999-07-09 2005-03-29 Sarnoff Corporation Retractable rear projection display
AU2001234604A1 (en) * 2000-01-27 2001-08-07 Sarnoff Corporation Retractable rear projection display
WO2002021205A1 (en) * 2000-09-08 2002-03-14 Sony Electronics, Inc. Footprint reduction in a rear projection television system
US6717627B2 (en) * 2001-03-13 2004-04-06 Koninklijke Philips Electronics N.V. Integrated screen protector and holder
US7267661B2 (en) * 2002-06-17 2007-09-11 Iradimed Corporation Non-magnetic medical infusion device
US20070019274A1 (en) * 2005-07-25 2007-01-25 Scott Lerner Double pass light modulator
JP6564138B2 (ja) * 2015-07-31 2019-08-21 エーエスエムエル ホールディング エヌ．ブイ． アライメントシステムの光学システム
US10018840B2 (en) * 2016-02-12 2018-07-10 Lg Electronics Inc. Head up display for vehicle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0488590A1 (de) * 1990-11-30 1992-06-03 THORN EMI plc Anzeigevorrichtung
EP0648048A1 (de) * 1993-10-06 1995-04-12 Koninklijke Philips Electronics N.V. Reflektierender Bildprojektionsschirm und Bildprojektionsystem mit einem solchen Schirm
EP0657769A1 (de) * 1993-12-10 1995-06-14 Koninklijke Philips Electronics N.V. Bildprojektionssystem
EP0665460A2 (de) * 1994-01-28 1995-08-02 Matsushita Electric Industrial Co., Ltd. Optisches System für ein Bildanzeigegerät mit Rückprojektion
EP0736795A1 (de) * 1995-04-07 1996-10-09 Thomson-Csf Kompakte Vorrichtung für Retroprojektion
EP0783133A1 (de) * 1995-12-29 1997-07-09 Compaq Computer Corporation Bildprojektion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792198A (en) * 1972-09-28 1974-02-12 Ibm Partition system for image displays
GB8804402D0 (en) * 1988-02-25 1988-03-23 Emi Plc Thorn Display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0488590A1 (de) * 1990-11-30 1992-06-03 THORN EMI plc Anzeigevorrichtung
EP0648048A1 (de) * 1993-10-06 1995-04-12 Koninklijke Philips Electronics N.V. Reflektierender Bildprojektionsschirm und Bildprojektionsystem mit einem solchen Schirm
EP0657769A1 (de) * 1993-12-10 1995-06-14 Koninklijke Philips Electronics N.V. Bildprojektionssystem
EP0665460A2 (de) * 1994-01-28 1995-08-02 Matsushita Electric Industrial Co., Ltd. Optisches System für ein Bildanzeigegerät mit Rückprojektion
EP0736795A1 (de) * 1995-04-07 1996-10-09 Thomson-Csf Kompakte Vorrichtung für Retroprojektion
EP0783133A1 (de) * 1995-12-29 1997-07-09 Compaq Computer Corporation Bildprojektion

Also Published As

Publication number Publication date
EP0884898A1 (de) 1998-12-16
US6318862B1 (en) 2001-11-20
JPH1195173A (ja) 1999-04-09
DE69834070D1 (de) 2006-05-18
EP0884898B1 (de) 2006-04-05

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